So picked up a package of Bob's Red Mill rice flour, a Texas Sweet onion (Walla Wallas aren't in season yet), some Crimini mushrooms:
Cracked an egg, then added the rice flour and mixed with ice water:
Quartered the 'shrooms and sliced the onion. I put some rice flour in a bowl so I could dust the pieces before adding them to the batter:
Using my Fry Daddy, I used vegetable oil and brought it up to frying temps:
I alternated a small batch of 'shrooms witha a small batch of onions until they were done. I had also sliced up a piece of steak, dusted and battered them and then into the fryer as an experiment.
Everything came out nice, tho I think I won't do steak bites again, at least with rice tempura. Maybe with a good wheat flour beer batter. The onions and 'shrooms came out perfectly and everything made a great dinner with a couple of dipping sauces.
Rice flour tempura is definitely going into my cooking rotation, can't wait to try it on different veggies. Another thing I will do is set the oven to low and stash the finished veggies in there while I work on the rest to keep things crisp until serving time.